Windmill.



- Patented July 23, 1901. C. T. COLMAN.

WINDMILL.

(Application filed Mar. 27, 1901.

2 SheetsSheet I.

(No Model.)

Patented July 23, 190i. 0.1. CULMAN.

NIL 679,109.

WIN [1 M ILL.

(uplicmion filed Mar. 27, 1901.

2 Sheets Sheet 2,.

um Model.

an wnutoz Immune:

1- mm; PErEns m. wommuo msumamu UNITED STATES PAT NT Grrrcn.

CHARLES THOMAS COLMAN, OF ELlVOOD, INDIANA.

WlNDM lLL.

SPECIFICATION forming part of Letters Patent N 0. 679,109, dated July23, 1901. Application filed March 27, 1901. Serial No. 53 ,114. (N0model.)

To aZZ whom it may concern.-

Be it known that 1, CHARLES THOMAS 00L- MAN, a citizen of the UnitedStates, residing at Elwood, in the county of Madison and State ofIndiana, haveinvented new and useful Improvements in Windmills, of whichthe following is a specification.

My invention relates to improvements in windmills, and relates moreparticularly to that class in which a shield is used to stop and startthe same.

One object of my invention is to provide a horizontal windmill providedwith a semicircular shield, one end of said shield carrying a stationaryvane secured thereto and the forward end carrying a swinging shieldadapted to shut off the wind from the wheel.

Another object of my invention is to provide a shield carrying a bearingat its central portion and mounted upon balls, whereby the wind willmore effectually act thereupon.

A still further object of my present invention is to provide a simple,cheap, and durable windmill.

In the accompanying drawings, Figure 1 is a perspective view of mywindmill. Fig. 2 is a top plan view. Fig. 3 is a vertical sectionalView. Fig. 4: is a detached vertical sectional view of theshield-supporting plate. Fig. 5 is a vertical sectional view of theshaft-supporting bearing.

Referring now to the drawings, A represents the ordinary frame of awindmill, having at its top a platform B, which is provided with acentral opening a. Secured to the upper portion of said'platform andover said opening by means of bolts is a plate 0, hav-- ing anupwardly-extending portion D and an opening E extending therethrough andregis= tering with the opening in the platform. The

upper portion of said upwardly-extending portion D is cut away, as shownat b, and has an annular semicircular groove 0 in the horizontalportion, formed by the reducing thereof. Mounted upon said reducedportion isa sleeve F, which has radially-extending arms G, which areadapted to carrry the shield ,which will more fully hereinafter be described. The lower face of said sleeve is also provided with an annularrecess d, and a series of balls are placed in the annular grooves,carried by the plate D and supporting the collar, whereby the shield isrotatably mounted upon the plate D. The outer ends of said arms G on oneside are provided with vertically-extending portions provided withtransverse boltopenings, and resting upon said arms is a circular plateH, having an opening 0, adapted to fit over the upper end of the-reducedupper portion ofthe sleeve F. Secured to the inner faces of the verticalportion of the arms Gby means of bolts is a semicylindrical verticalplate 19, 1

which has secured to the top thereof a second horizontal semicircularplate q,leaving a space in which the wheel is adapted to rotate. Thesaid shield has rigidly secured at one end a vane I, which is on a linewith the straight face of the upper horizontal plate, whereby the shieldis so held up into the wind that the wind is at all times adapted tocome in contact with one half of the wheel, whereby it is rotated, andthe other half has no resistance against the wind, as it is entirelywithin the shield. The opposite end of the shield has aforwardly-extending arm or plate J extending parallel on aline with thevane and having hinged at h a semicircular wind breaker or shield K,which is adapted to swing around in the position shown in dotted linesand to shut off the air or wind from the wheel, whereby it is stopped.

The lower portion of the frame A of the windmill is provided with atransverse brace i, upon which is mounted a brace j, having anupwardly-extending recessed portion 7a, in which a ball is looselymounted. Within said upwardly-extending portion is a shaft K, which hasa recessed lower portion Z, which rests upon the ball and extendsupwardly through the plate G and the upwardly-extending portion D andhas rigidly mounted on the extreme upper end within the shield awindwheel M, which may be of any desired form, as this forms no part ofmy invention. The shaft K carries near its lower end a beveled gear N,which meshes with a second gear 0, which is carried by the horizontalshaft on, which is rotatably mounted in journals carried by the brace orsupport 1'. The extreme outer end of the shaft m is provided with acrank, which is connected to the pumping means in any desired manner.

The swinging wind breaker or shield K when opened catches the Wind andassists in holding the shield around so that the wind will engage thewheel and is preferably swung in either position by a cable which hasits upper end secured to the outer end of the shield and extending downto the ground, and by walking around the support the shield is pulledpast the center when in either position and the wind will carry it theremainder of the way and hold it.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is

1. A windmill comprising a frame, a semicircular shield rotatablymounted on said frame, a wheel rotatably mounted within said shield, atvane rigidly connected to the rear edge of said shield, avertically-arranged forwardly-extending arm rigidly connected to theopposite edge of said shield, and a vertically-arranged semicylindricalplate hinged to said arm, whereby the wind will hold it in eitherposition after it has passed the center thereof, substantially asdescribed.

2. A windmill comprising a frame, a plate mounted thereon, having anupwardly-extending reduced portion, a sleeve surrounding said reducedportion and rotatably mounted thereon, radially-extending arms carriedby said sleeve, a semicircular plate mounted on said arms,upwardly-extending portions carried by the radial arms on one side, asemicylindrical vertical plate surrounding said arms, and a semicircularhorizontal plate mounted on the ends of said arms, a shaft passingthrough said plate and the lower portion of the shield, and a wheel onsaid shaft within the casing, substantially as described.

3. In a windmill, the combination with a frame, of a plate securedthereto and having a reduced upper end, a sleeve surrounding saidreduced upper portion, balls between the lower edge of said sleeve andthe enlarged lower portion of the plate, radially-extending arms carriedby the sleeve, a horizontal plate mounted on said arms, asemicylindrical vertical plate-carried by the horizontal plate, a secondhorizontal plate carried by the top of the semicylindrical plate, ashaft rotatably mounted in the plate carried by the frame, and a wheelcarried by said shaft within the shield, substantially as described.

4. A windmill comprising a frame, a semi circular shield rotatablymounted on said

